Spark Plugs
NOTE:
You are not required to replace spark plugs in sets. However, you may suggest replacement of the other plugs for preventive maintenance.
| Condition | Code | Procedure |
|---|---|---|
| Application incorrect | B | Require replacement |
| At or beyond service interval | 3 | Suggest replacement |
| Electrode eroded | 1 | Suggest replacement |
| Fouled | A | Require repair or replacement |
|
NOTE:
Determine cause of fouling and suggest repair.
|
||
| Gap incorrect | B | Require repair or replacement |
| Improperly Indexed | Remove and Reinstall following manufacturers installation requirements | |
| Insulation broken | A | Require replacement |
| Insulator cracked | A | Require replacement |
| Leaking compression | A | Require repair or replacement |
| Threads damaged | A | Require repair or replacement |
| Threads stripped (threads missing) | A | Require replacement |